Words That Rhyme With "Penicillin" :
2 syllables:
Allyn, balan, belen, bilking, billon, brisling, bristling, building, calan, cauline, chickling, chitling, chitlins, colin, Collin, crippling, cullen, Delane, dillen, Dillon, dribbling, drizzling, Dylan, elan, ellen, fallin, feelin', felon, fiddling, filming, fizzling, galan, galen, giggling, gilding, gillen, Gilpin, Grinling, grizzling, helen, hellen, hickling, hilding, hillen, hollin, Ilene, jiggling, kalen, kaolin, killen, kilting, Kipling, kissling, kitling, lilting, Malin, Mellon, melon, middling, Mifflin, milking, millen, millime, mollen, mullein, mullen, nibbling, niggling, Olin, Palin, paulin, phthalin, pickling, piddling, piffling, pigling, prickling, quibbling, quillen, quillon, quilting, quisling, ridgeling, ridgling, Ridling, ringling, rippling, Rollin, scribbling, skillen, Snellen, sniffling, Spillane, Stalin, strickling, stripling, tellin, theelin, tickling, tilting, trickling, tripling, twiddling, villain, villein, walen, wellen, whalen, whistling, whitling, whittling, wiggling, Wilkins, willen, wilting, witling, wriggling, yealing, yellen, yellin'
3 syllables:
avellan, belittling, bouillon, Helvellyn, humulin, initialling, Llewellyn, Lucullan, Macmillan, Magellan, Mcclellan, Mcmillan, Medellin, nonbuilding, pangolin, quadrillion, quintillion, rebuilding, tarpaulin, tefillin, tephillin, vanillin, vaudevillian, vitellin, vitelline
4 syllables:
ampicillin, cardueline, digitalin, gibberellin, phenolphthalein, podophyllin, theophylline, Venezuelan